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Cheap flights from St. Louis to Boise (STL - BOI) from $81

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 6/24. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
STL — BOI
jun. 11 — jun. 181
From?
To?
mar. 6/11
mar. 6/18
1 adult, Economy
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The best prices from Lambert-St Louis to Boise Air Term. Gowen Fld are usually found in January or February, booked 68 days in advance, depart on a Wednesday or Saturday and return on a Tuesday

Cheap flight deals from St. Louis to Boise

Discover tips and strategies to find the most affordable flight options for your journey from St. Louis (STL) to Boise (BOI). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated junio 6, 2024.

Popular in

March

Cheapest in

January

Round-trip from

$312

One-way from

$183
High demand for flights, 28% potential price rise
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Best time to find cheap flights, 26% potential price drop
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From Lambert-St Louis to Boise Air Term. Gowen Fld
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One-way flight from Lambert-St Louis to Boise Air Term. Gowen Fld
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What is the cheapest day to fly round-trip from St. Louis to Boise?

Users have found that flying from St. Louis to Boise on a Thursday typically leans towards higher prices. However, this doesn’t mean you still can’t find a deal. Flexibility with other aspects of your flight can still land a great price for your trip.

How far in advance should I book a flight from St. Louis to Boise?

Find a great deal and save up to 138% by booking at least 18 days prior to your desired departure date, rather than waiting until the week of travel. According to our data, there are a number of flights available from St. Louis to Boise within the next two weeks, with the cheapest ticket starting at $379.

What is the cheapest month to fly from St. Louis to Boise?

Flights from St. Louis to Boise lean towards being more expensive in March. Prices are generally better when you fly from St. Louis to Boise in January, with the cheapest ticket starting at $298.

What is the cheapest time of day to fly from STL to BOI?

When flying from St. Louis to Boise, the time of day you fly usually plays a role in the price. Save by searching for a flight at noon, which can drop the price by up to 11% versus a flight in the afternoon.

Cheap St. Louis to Boise flights in June & July 2024

Find cheap flight options from St. Louis to Boise specifically for the months of June and July 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 3,050,429 searches. Prices were last updated on junio 6, 2024.
These are some of the best deals we've found on flights to Boise in 2024 at this time. Check back soon for alternative fares.
mié. 6/121:55 pmSTL - BOI
1 stop7h 15mSpirit Airlines
mar. 6/189:13 pmBOI - STL
1 stop14h 52mSpirit Airlines
Deal found 6/6$128
mar. 7/2310:11 amSTL - BOI
2 stops27h 02mSpirit Airlines
mar. 7/301:03 pmBOI - STL
1 stop25h 03mSpirit Airlines
Deal found 6/6$173
mié. 7/174:02 pmSTL - BOI
1 stop20h 21mMultiple Airlines
mar. 7/236:20 pmBOI - STL
1 stop19h 46mMultiple Airlines
Deal found 6/5$183
lun. 7/224:02 pmSTL - BOI
1 stop21h 11mSpirit Airlines
mar. 7/306:20 pmBOI - STL
1 stop19h 46mSpirit Airlines
Deal found 6/6$189
mar. 7/3010:11 amSTL - BOI
3 stops33h 17mSpirit Airlines
mar. 8/66:20 pmBOI - STL
1 stop19h 46mSpirit Airlines
Deal found 6/5$217
mar. 7/1610:11 amSTL - BOI
3 stops27h 02mSpirit Airlines
mar. 7/231:03 pmBOI - STL
1 stop25h 03mSpirit Airlines
Deal found 6/6$262
vie. 7/53:07 pmSTL - BOI
1 stop6h 16mMultiple Airlines
vie. 7/123:59 pmBOI - STL
1 stop7h 00mMultiple Airlines
Deal found 6/5$264
vie. 6/143:07 pmSTL - BOI
1 stop6h 16mSpirit Airlines
mar. 6/189:13 pmBOI - STL
1 stop14h 52mSpirit Airlines
Deal found 6/6$275
lun. 6/102:41 pmSTL - BOI
1 stop6h 42mSpirit Airlines
mar. 6/189:13 pmBOI - STL
1 stop14h 52mSpirit Airlines
Deal found 6/6$276

St. Louis to Boise 2024 flight deals

Discover exclusive flight deals for travel between St. Louis and Boise in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 3,050,429 searches. Data last updated junio 6, 2024.
These are some of the best deals we've found on flights to Boise in 2024 at this time. Check back soon for alternative fares.
mié. 6/121:55 pmSTL - BOI
1 stop7h 15mSpirit Airlines
mar. 6/189:13 pmBOI - STL
1 stop14h 52mSpirit Airlines
Deal found 6/6$128
mar. 7/2310:11 amSTL - BOI
2 stops27h 02mSpirit Airlines
mar. 7/301:03 pmBOI - STL
1 stop25h 03mSpirit Airlines
Deal found 6/6$173
mié. 7/174:02 pmSTL - BOI
1 stop20h 21mMultiple Airlines
mar. 7/236:20 pmBOI - STL
1 stop19h 46mMultiple Airlines
Deal found 6/5$183
lun. 7/224:02 pmSTL - BOI
1 stop21h 11mSpirit Airlines
mar. 7/306:20 pmBOI - STL
1 stop19h 46mSpirit Airlines
Deal found 6/6$189
mar. 7/3010:11 amSTL - BOI
3 stops33h 17mSpirit Airlines
mar. 8/66:20 pmBOI - STL
1 stop19h 46mSpirit Airlines
Deal found 6/5$217
mar. 7/1610:11 amSTL - BOI
3 stops27h 02mSpirit Airlines
mar. 7/231:03 pmBOI - STL
1 stop25h 03mSpirit Airlines
Deal found 6/6$262
vie. 7/53:07 pmSTL - BOI
1 stop6h 16mMultiple Airlines
vie. 7/123:59 pmBOI - STL
1 stop7h 00mMultiple Airlines
Deal found 6/5$264
vie. 6/143:07 pmSTL - BOI
1 stop6h 16mSpirit Airlines
mar. 6/189:13 pmBOI - STL
1 stop14h 52mSpirit Airlines
Deal found 6/6$275
lun. 6/102:41 pmSTL - BOI
1 stop6h 42mSpirit Airlines
mar. 6/189:13 pmBOI - STL
1 stop14h 52mSpirit Airlines
Deal found 6/6$276

St. Louis to Boise flights leaving soon

Find last-minute flight options from St. Louis to Boise for spontaneous travel. Discover available flights and compare prices based on user searches. Secure great deals and offers for spontaneous trips with quick booking options. Over the last 7 days, Cheapflights users made 3,050,429 searches. Data last updated junio 6, 2024.
Have a look at some of the flights available from St. Louis to Boise departing last-minute. Users should double check the flight they book to ensure it matches the day, time, and destination they're looking for.
mié. 6/121:55 pmSTL - BOI
1 stop7h 15mSpirit Airlines
mar. 6/189:13 pmBOI - STL
1 stop14h 52mSpirit Airlines
Deal found 6/6$128
vie. 6/143:07 pmSTL - BOI
1 stop6h 16mSpirit Airlines
mar. 6/189:13 pmBOI - STL
1 stop14h 52mSpirit Airlines
Deal found 6/6$275
mié. 6/121:55 pmSTL - BOI
1 stop7h 15mMultiple Airlines
jue. 6/209:13 pmBOI - STL
3 stops17h 52mMultiple Airlines
Deal found 6/6$291
mié. 6/121:55 pmSTL - BOI
1 stop7h 15mMultiple Airlines
mar. 6/185:39 pmBOI - STL
3 stops25h 41mMultiple Airlines
Deal found 6/6$318
vie. 6/1412:00 pmSTL - BOI
3 stops33h 23mMultiple Airlines
mar. 6/189:13 pmBOI - STL
1 stop14h 52mMultiple Airlines
Deal found 6/6$324
sáb. 6/1511:34 amSTL - BOI
2 stops24h 49mMultiple Airlines
vie. 6/219:13 pmBOI - STL
2 stops21h 48mMultiple Airlines
Deal found 6/4$332
mié. 6/121:55 pmSTL - BOI
1 stop7h 15mSpirit Airlines
lun. 6/177:19 pmBOI - STL
3 stops18h 04mSpirit Airlines
Deal found 6/6$344
sáb. 6/1512:00 pmSTL - BOI
3 stops33h 23mMultiple Airlines
jue. 6/209:13 pmBOI - STL
1 stop16h 03mMultiple Airlines
Deal found 6/6$364
sáb. 6/1511:34 amSTL - BOI
2 stops24h 49mMultiple Airlines
vie. 6/217:19 pmBOI - STL
3 stops34h 46mMultiple Airlines
Deal found 6/4$424

One-way flights to Boise from St. Louis

Search for one-way flight options from St. Louis to Boise. Find affordable one-way fares based on user searches. Compare prices and availability to plan your one-way journey according to your preferred dates and budget. Over the last 7 days, Cheapflights users made 3,050,429 searches. Data last updated junio 6, 2024.
Users traveling one-way from St. Louis to Boise can select one of these great deals. Those needing a return flight from St. Louis to Boise can use the search form above.
lun. 6/242:41 pmSTL - BOI
1 stop6h 42mSpirit Airlines
Deal found 6/5$81
mar. 7/2310:11 amSTL - BOI
2 stops27h 02mSpirit Airlines
Deal found 6/6$106
mar. 7/237:50 pmSTL - BOI
1 stop6h 11mAmerican Airlines
Deal found 6/6$151
mar. 7/2310:11 amSTL - BOI
3 stops27h 02mSpirit Airlines
Deal found 6/6$157
jue. 7/185:22 amSTL - BOI
1 stop6h 34mAmerican Airlines
Deal found 6/4$183
jue. 7/188:49 pmSTL - BOI
2 stops23h 25mSpirit Airlines
Deal found 6/4$189
jue. 7/188:49 pmSTL - BOI
3 stops23h 25mSpirit Airlines
Deal found 6/4$217
lun. 6/242:29 pmSTL - BOI
2 stops10h 21mDelta
Deal found 6/5$358
lun. 6/249:44 amSTL - BOI
2 stops13h 21mAlaska Airlines
Deal found 6/6$408

Find flights from St. Louis to Boise within your budget

Customize your flight search to find flights from St. Louis to Boise that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 3,050,429 searches. Data last updated junio 6, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$173 - $346

Route

Depart

Return

Price

Lambert-St LouisBoise Air Term. Gowen Fld

STL - BOI

STLBOI

Lambert-St Louis

mar. 7/23

2 stops27h 02m

Boise Air Term. Gowen Fld

mar. 7/30

1 stop25h 03m

$173

Lambert-St LouisBoise Air Term. Gowen Fld

STL - BOI

STLBOI

Lambert-St Louis

mié. 7/17

1 stop20h 21m

Boise Air Term. Gowen Fld

mar. 7/23

1 stop19h 46m

$183

Lambert-St LouisBoise Air Term. Gowen Fld

STL - BOI

STLBOI

Lambert-St Louis

mar. 7/30

3 stops33h 17m

Boise Air Term. Gowen Fld

mar. 8/6

1 stop19h 46m

$217

Lambert-St LouisBoise Air Term. Gowen Fld

STL - BOI

STLBOI

Lambert-St Louis

mar. 7/16

3 stops27h 02m

Boise Air Term. Gowen Fld

mar. 7/23

1 stop25h 03m

$262

Lambert-St LouisBoise Air Term. Gowen Fld

STL - BOI

STLBOI

Lambert-St Louis

vie. 7/5

1 stop6h 16m

Boise Air Term. Gowen Fld

vie. 7/12

1 stop7h 00m

$264

Lambert-St LouisBoise Air Term. Gowen Fld

STL - BOI

STLBOI

Lambert-St Louis

mar. 7/23

1 stop6h 34m

Boise Air Term. Gowen Fld

mar. 7/30

1 stop5h 54m

$302

Lambert-St LouisBoise Air Term. Gowen Fld

STL - BOI

STLBOI

Lambert-St Louis

mar. 7/2

1 stop6h 46m

Boise Air Term. Gowen Fld

lun. 7/8

1 stop5h 29m

$334

Lambert-St LouisBoise Air Term. Gowen Fld

STL - BOI

STLBOI

Lambert-St Louis

lun. 7/1

1 stop9h 04m

Boise Air Term. Gowen Fld

mié. 7/10

1 stop6h 35m

$340

Lambert-St LouisBoise Air Term. Gowen Fld

STL - BOI

STLBOI

Lambert-St Louis

jue. 8/15

1 stop5h 13m

Boise Air Term. Gowen Fld

dom. 8/18

1 stop6h 44m

$346

Flights are sorted by cheapest first

Deals found on 6/6

How far ahead should I book a flight from St. Louis to Boise?

Use this chart to determine the optimal time to book a round-trip flight from St. Louis to Boise. Price data was last updated on May 31, 2024.
The price you pay for your flight from St. Louis to Boise may vary depending on when you book. For the best chance of a lower fare, look to book 68 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.
Search Deals

What is the cheapest day to fly from St. Louis to Boise?

Use this chart to determine the cheapest time to fly round-trip from St. Louis to Boise. Price data was last updated on June 2, 2024.
Morning
Noon
Afternoon
Evening
All times are departure.
Travelers seeking maximum savings on their St. Louis to Boise flight should consider departing on Wednesday mornings when fares are most often at their lowest. Saturday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.
Search Deals

Best time to book a flight from St. Louis to Boise

Have a flexible travel schedule? Discover the best time to fly to Boise from St. Louis with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Temperature and rainfall in Boise by month

Plan your trip to Boise by taking into account the average temperature and rainfall totals by month.

BOI

Temperature

30.2 - 75.2 °F

If weather is an important factor for your trip to Boise, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 75.2 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 30.2 F).

Reviews of airlines servicing Boise

Get insights into the airlines that provide service to Boise. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Boise. Reviews last updated junio 6, 2024.
See what other customers who have flown with Delta, Spirit Airlines and United Airlines from St. Louis to Boise have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.1
Very good
9,222 reviews

Overall

8.1

Comfort

7.9

Entertainment

7.3

Boarding

8.2

Crew

8.6

Food

7.3

Reviews

1 / 10

Crew and airport staff were excellent. They accommodated my needs and were super professional and kind.

Alaska Airlines
8.1
Very good
9,222 reviews
Alaska Airlines
8.1
Very good
9,222 reviews

Overall

8.1

Comfort

7.9

Entertainment

7.3

Boarding

8.2

Crew

8.6

Food

7.3

Reviews

1 / 10

Crew and airport staff were excellent. They accommodated my needs and were super professional and kind.

Delta
8.0
Very good
10,368 reviews
Alaska Airlines
8.1
Very good
9,222 reviews

Overall

8.1

Comfort

7.9

Entertainment

7.3

Boarding

8.2

Crew

8.6

Food

7.3

Reviews

1 / 10

Crew and airport staff were excellent. They accommodated my needs and were super professional and kind.

United Airlines
7.4
Good
10,696 reviews
Alaska Airlines
8.1
Very good
9,222 reviews

Overall

8.1

Comfort

7.9

Entertainment

7.3

Boarding

8.2

Crew

8.6

Food

7.3

Reviews

1 / 10

Crew and airport staff were excellent. They accommodated my needs and were super professional and kind.

American Airlines
7.3
Good
14,227 reviews
Alaska Airlines
8.1
Very good
9,222 reviews

Overall

8.1

Comfort

7.9

Entertainment

7.3

Boarding

8.2

Crew

8.6

Food

7.3

Reviews

1 / 10

Crew and airport staff were excellent. They accommodated my needs and were super professional and kind.

Spirit Airlines
6.4
Okay
8,567 reviews
Alaska Airlines
8.1
Very good
9,222 reviews

Overall

8.1

Comfort

7.9

Entertainment

7.3

Boarding

8.2

Crew

8.6

Food

7.3

Reviews

1 / 10

Crew and airport staff were excellent. They accommodated my needs and were super professional and kind.

Related info for your journey

Find useful and relevant information for your journey from St. Louis to Boise. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • Can I find flights from St. Louis to Boise for under $200 on Cheapflights?

    Yes, there are multiple flights from St. Louis to Boise for under $200. The cheapest flight booked recently is on Spirit Airlines for just $173, but on average you can expect to pay $291.

  • Are there last-minute flights available from St. Louis to Boise for under $200?

    There are currently 20+ open flights from St. Louis to Boise within the next 7 days for less than $200.

  • What are the cheapest airlines flying from St. Louis to Boise round-trip?

    According to our current data, Spirit Airlines ($173), American Airlines ($302), and Delta ($334) offers the cheapest pricing from St. Louis to Boise. Spirit Airlines is priced at 62% lower than the current average price of a flight leaving 3 months from now.

  • What are the cheapest airlines to fly from St. Louis to Boise one-way?

    To fly one-way, consider booking your trip with Spirit Airlines, which is currently one of the cheapest options available, starting at $81. American Airlines flights start at $151 while deals on Delta start at $358 one-way.

  • What does STL to BOI mean?

    Great question - STL to BOI just means Lambert-St Louis Airport to Boise Air Term. Gowen Fld Airport. Now you’ll know what these unique codes when you look for flights!

  • Can I find deals for flights from St. Louis to Boise that include extra baggage allowance?

    The amount of baggage you can bring on your St. Louis to Boise flight depends on the airline and the type of fare you've chosen. After entering your flight details, you'll be able to view the specific baggage policies for each deal in the search results. Keep in mind that certain deals may offer additional baggage allowance.

  • Can I find deals on flights from St. Louis to Boise with specific airlines?

    Yes, Cheapflights allows you to browse and filter St. Louis to Boise flight deals by airline. After entering your origin and destination, use the available filters to view flights offered by airlines.

  • Can I find deals for flights from St. Louis to Boise that include hotel bookings?

    Yes. In addition to deals on St. Louis to Boise flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from St. Louis to Boise?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from St. Louis to Boise.

  • Can I find deals for business class flights from St. Louis to Boise?

    Yes. Cheapflights offers flight deals from St. Louis to Boise by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • Can I find deals for flights from St. Louis to Boise that allow pets onboard?

    Many airlines flying from St. Louis to Boise offer the option to travel with pets. After selecting a flight deal, you can find more information about the airline's pet policy on their official website or by contacting the airline directly. Please note that additional fees and restrictions may apply.

  • Can I find deals on last-minute flights from St. Louis to Boise?

    Yes, you can often find last-minute deals on St. Louis to Boise flights on Cheapflights. However, these deals can vary and may not always be available. We recommend checking back frequently or signing up for price alerts for the most up-to-date deals.

  • How recently were the St. Louis to Boise flight deals updated?

    The St. Louis to Boise flight deals you see on this page were last updated on 6/6.

  • What are the most popular airlines that fly from St. Louis to Boise?

    Before booking your flight from St. Louis to Boise check out the most popular airlines for this route: American Airlines, Alaska Airlines or Delta.

  • What is the cheapest month to book a flight from St. Louis to Boise?

    Currently, December is the cheapest month in which you can book a flight from St. Louis to Boise (average of $312). Flying from St. Louis to Boise in June is currently the most expensive (average of $457). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Alternative routes for St. Louis to Boise
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Top 5 airlines flying from St. Louis to Boise

Discover the top 5 airlines that operate flights from St. Louis to Boise. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 3,050,429 searches. Data last updated junio 6, 2024.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$193Average$239FlexibilityNo cancel feeOn-time65%
DeltaCheapest$296Average$465FlexibilityNo cancel feeOn-timeN/A
Alaska AirlinesCheapest$304Average$388FlexibilityNo cancel feeOn-time75%
United AirlinesCheapest$316Average$513FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$319Average$528FlexibilityNo cancel feeOn-time71%
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Search flights from St. Louis to Boise by cabin class

Find flights from St. Louis to Boise, based on your preferred cabin class, be it economy, premium economy, business, or first class.
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